EP2243418A1 - Dispositif et procédé de traitement et d'analyse de canaux dans des instruments, notamment des endoscopes - Google Patents

Dispositif et procédé de traitement et d'analyse de canaux dans des instruments, notamment des endoscopes Download PDF

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Publication number
EP2243418A1
EP2243418A1 EP09158261A EP09158261A EP2243418A1 EP 2243418 A1 EP2243418 A1 EP 2243418A1 EP 09158261 A EP09158261 A EP 09158261A EP 09158261 A EP09158261 A EP 09158261A EP 2243418 A1 EP2243418 A1 EP 2243418A1
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EP
European Patent Office
Prior art keywords
measuring
flow
channel
treatment
treatment fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09158261A
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German (de)
English (en)
Other versions
EP2243418B1 (fr
Inventor
Antonio Medici
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Belimed AG
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Belimed AG
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Application filed by Belimed AG filed Critical Belimed AG
Priority to EP09158261A priority Critical patent/EP2243418B1/fr
Priority to AT09158261T priority patent/ATE547041T1/de
Priority to US12/761,890 priority patent/US8721985B2/en
Publication of EP2243418A1 publication Critical patent/EP2243418A1/fr
Application granted granted Critical
Publication of EP2243418B1 publication Critical patent/EP2243418B1/fr
Revoked legal-status Critical Current
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A61B1/121—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning post-use
    • A61B1/123—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning post-use using washing machines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases

Definitions

  • the invention relates to a device and a method for treating and analyzing channels in instruments, in particular in endoscopes according to the preamble of the independent claims.
  • This is a machine reprocessing of the instruments, which may be human medical or veterinary endoscopes, but in some cases also other instruments for industrial or scientific purposes with channels that need to be cleaned after a certain period of use of the instrument.
  • endoscopes are usually understood to be a process consisting of a sequence of rinsing, cleaning, disinfecting and drying. To ensure that no impurities remain in the channels, the condition of the channels must be analyzed during the treatment process, whereby the permeability of the channels is a measure of their purity.
  • a problem with the known methods and devices is in particular that residues of a previous Process step can be dragged into the next process step, so that, for example, detergent enters the subsequent disinfection process.
  • the conduit system consists of flexible tubes in which can form pockets that are no longer emptied after completion of a process step.
  • Further disadvantages of the known systems are that the sometimes different and / or branched channels of an endoscope can not be treated individually and also analyzed individually. Poor in the known state of the art are partly the actual measurement methods that react only to certain treatment fluids. Finally, an unnoticed leak can occur in the system, so that not enough treatment fluid gets to the instrument.
  • the carryover of treatment agents of a process step into a subsequent process step is to be prevented.
  • the measurement of the flow should be reliable and always under the same operating conditions.
  • the device should also enable the treatment and analysis of the largest possible number of individual channels in the same process.
  • the line system has a measuring section and the measuring device has at least one flow sensor which is arranged in the measuring section. All treatment steps can be carried out via the line system and in particular via the measuring section with the flow sensor.
  • the fluid port is connectable to at least one treatment fluid source and preferably is a conveying means for Passage of the treatment fluid through the piping system and through the connected channel present.
  • the conveying means may be, for example, a pump. It is also conceivable, however, another source of pressure medium, such as a set under atmospheric pressure tank, etc.
  • the measurement of the flow takes place on a measurement path which runs directly below the plane on which the channel connection lies, wherein the entire line system and in particular the measurement path is inclined to the horizontal plane and is preferably aligned perpendicular thereto. Due to the ascending arrangement of the piping system, it can be completely emptied of treatment liquid, without pockets with residues can form. The emptying is already possible under gravity with deactivated funding. Alternatively, however, a suction is possible.
  • the flow sensor is particularly advantageously a thermoelectric sensor, which determines the flow without moving parts.
  • Thermoelectric flow sensors are known per se and in use.
  • a thermal flow sensor is for example in the DE 43 14 364 described.
  • the measuring principle is based on the fact that the fluid flowing through causes a cooling, whereby a constant temperature is maintained by means of a heating element.
  • the current supplied to the heating element is a measure of the flow of the fluid.
  • Two flow sensors are arranged in succession in the measuring path, with which the flow can be measured redundantly. This achieves a particularly high degree of safety because the sensors also undergo control during the process. If the two sensors measure unequal values, this may indicate a fault on one of the sensors.
  • an inlet valve is advantageously arranged, which shuts off the entire line system to the outside before the start of the treatment process. This shut-off is for safety reasons and to prevent back contamination of the piping system.
  • each line system leads to a line connection and wherein preferably all line connections are arranged on a common connection head.
  • connection head all line connections are summarized, which greatly facilitates the handling and what is also advantageous for reasons of space.
  • All line systems can be fed via a common distribution chamber with the treatment fluid.
  • the common distribution chamber also facilitates the simultaneous and rapid emptying of the conduit system or the change from one treatment fluid to the next.
  • all line systems preferably at least four, are preferably arranged in a circle or star shape around a central, preferably vertical axis.
  • eight pipe systems are arranged in a circle.
  • the flow sensors and any other components such. Electronics, valves etc. easily accessible from the outside.
  • connection head can be lifted in the described arrangement of the conduit systems by means of a lifting device from a rest position, away from the measuring unit in a preferably higher operating position in which the line connections to a, a receiving basket for the instruments associated connection adapter be docked.
  • the receiving basket can be equipped with the connection adapter outside the device or outside the treatment chamber, wherein the individual channels of the instrument are connected to the adapter in a respective prescribed order. After retraction of the basket in the device chamber, the connection of the channel systems takes place automatically.
  • connection between the measuring unit and the connection head is advantageously via risers, which are telescopically displaceable in the measuring unit.
  • risers which are telescopically displaceable in the measuring unit.
  • the piping system preferably consists exclusively of rigid piping to avoid the formation of pockets.
  • the rigid pipes also have the advantage that they can not deform, for example under the action of heat or chemicals, so that no unwanted cross-sectional change occurs.
  • pipeline is understood in principle any routing, so for example, a hole in a block of material.
  • the object is achieved by means of a method having the features in claim 12.
  • the measurement is carried out by means of a flow sensor on a measuring section and all treatment steps are carried out via the line system and in particular via the measuring section with the flow sensor.
  • the measuring path with the sensor is permanently subjected to the same treatment steps as the instrument to be treated.
  • This applies in particular to the same treatment temperature and in particular also at least one chemical and / or thermal disinfection.
  • the piping system is thus permanently self-cleaning and the germ count reduction in the piping system is the same as in the instrument to be treated.
  • the promotion of the treatment fluid relative to a horizontal level from bottom to top in the measuring section and preferably in the entire line system allows a reliable measurement under always the same hydrostatic conditions and also a complete emptying of the pipe system and in particular the measuring section.
  • the treatment fluid is preferably simultaneously conveyed under the same pressure through a plurality of conduit systems, from each leading to a duct connection, the flow being measured at each piping system.
  • thermoelectric sensors not only allow a flow measurement of any liquids, but also of gases. Thus, it is conceivable, for example, to determine the state of the channels when passing through drying air.
  • the flow is measured redundantly on each measuring section by means of two flow sensors, wherein the two measurements are evaluated independently and compared with each other.
  • a comparison device can be used, which is set to a specific tolerance value, so that when this tolerance value is exceeded, the process is automatically interrupted and / or a warning signal is triggered.
  • a treatment device As in FIG. 1 1, a treatment device, generally designated 1, has a washing chamber 17, which can be closed by means of a washing chamber door 18.
  • a receiving basket 14 for the endoscopes to be treated can be inserted into the washing chamber 17 via suitable guides.
  • a at the bottom of the wash chamber barely visible connection head 10 communicates with inserted basket 14 and closed wash chamber door 18 with a connection adapter 15 at the bottom of the receiving basket in the manner described below.
  • the device has a control panel 19 on which the individual processes can be set or on which the respective process steps can be read.
  • the device also has a barcode reader 20, by means of which the coded endoscopes can be identified prior to insertion into the wash chamber. In this way, the specific processing steps can be assigned to each endoscope, whereby a printer 27 can print out a batch record.
  • FIG. 2 It is shown how an endoscope 2 is arranged with its hose lines 28 in the receiving basket 14.
  • the receiving basket 14 is in the embodiment of a wire construction, but could also have any other design.
  • the already mentioned connection adapter 15 is arranged, wherein the individual hose lines 28 of the endoscope are not yet attached to the individual adapter connections.
  • connection head 10 is part of a generally designated 9 measuring unit, which is arranged at the bottom 30 of the washing chamber and of which the greater part lies below this floor.
  • the reprocessing device has further, not described in detail components, such as a arranged in the upper part of the washing chamber 17 spray arm 29 for the external treatment of lying in the receiving basket 14 endoscopes. Delivery pumps, heating devices and treatment additive tanks are also located in the device.
  • FIGS. 5 to 7 show some more details of the measuring unit 9.
  • the entire measuring unit consists of a total of eight individual measuring cells 21, each of which forms its own channel system and the circular at regular pitch around a central axis 12 are arranged.
  • From the annular flange 23 protrude parallel risers 16, which are completed by the connection head 10.
  • the lifting movement for docking the connection head 10 to the respective connection adapter takes place with the aid of a lifting device 13 arranged in the lower region.
  • the central supply of all the channel systems takes place via a common distribution chamber 11, which is arranged below the measuring cells 21.
  • FIG. 8 is again the overall arrangement the individual measuring cells 21 of the measuring unit 9 visible.
  • the treatment fluids namely air and water are supplied via a connecting piece 22 of the distribution chamber 11.
  • each individual riser 16 moves telescopically in a telescopic guide tube 25, where it is sealed by suitable sealing means such as O-rings.
  • the riser pipes 16 open at the connection head 10 in each case into a duct connection 4, which forms the end of a line system.
  • This line system begins at the distribution chamber 11 or at a fluid connection 39 with a measuring section 6 of a measuring cell 21 and then runs past an inlet valve 8 via the telescopic guide tube 25 to the riser 16. Details of a measuring cell 21 are in FIG. 10 shown.
  • thermoelectric sensors 7 and 7 ' are arranged directly one after the other.
  • the sensors are fixed in a sensor housing 24, which also contains the required evaluation electronics for a redundant signal measurement.
  • the upper end of the measuring section 6 opens into a valve seat 31 which is assigned to an inlet valve 8.
  • This inlet valve 8 is disposed immediately above the sensor housing 24, as well as off FIG. 8 is apparent.
  • the line system leads to the telescopic guide tube 25, which, like the measuring section 6, is designed as a bore in a block of material.
  • the riser 16 is displaceable in the direction of arrow a.
  • the loaded basket is moved into the washing chamber and the washing chamber door is closed.
  • Each individual channel of the endoscope is connected separately to one of the connecting piece of the connection adapter 15. Sensors check the correct closing position of the wash chamber door, whereupon the process can be started.
  • the connection head 10 is docked from below to the connection adapter 15. Once this operating position has been reached, the reprocessing of the endoscope begins, on the one hand, by passing various treatment fluids through the channels and, on the other hand, by external treatment with treatment fluids.
  • An in FIG. 8 The controller, generally designated 32, compares the flow rate measured in the respective measuring section 6 with a nominal flow rate stored in the controller for the endoscope to be treated.
  • the controller transmits the measured in the individual measuring sections 6 flow to an independent measurement data acquisition 33. This compares the detected by the controller 32 flow with the corresponding flow through the second, redundant sensor 7 'in the same measuring section 6. In deviation of the flow is also a Warning message generated.
  • the entire measuring system is compatible with washing liquor, disinfectant, normal or desalinated water and air.
  • the measuring system can thus undergo the same preparation process as the instruments to be treated our.
  • the measuring system can be exposed to temperatures of up to 93 ° C, which enables thermal disinfection. This thermal disinfection process can take place at regular intervals, for example every twelve hours.
  • FIG. 11 is a preparation process that takes just over 40 minutes. During the first five minutes, a cold pre-wash and a dosed supply of cleaning agents take place. The mixture is then heated to about 45 ° C and washed for about three minutes. Then it is heated to about 58 ° C and washed again for about three minutes. Thereafter, a pumping down and a cold water inlet with a one-minute intermediate rinse at about 35 ° C The intermediate rinse is then pumped out and there is again a metered supply of disinfectant. It is again disinfected for about five minutes at 58 ° C, then pumped out and rinsed for about a minute. After a total of about 32 minutes process time is again heating and rinsing at 58 ° C for about 1.5 minutes and then it is pumped off, condensed and dried.
  • FIG. 12 shows an alternative embodiment of a double-decker basket 34.
  • endoscopes can be stored on two different floors, with a double connection adapter 35 leads to both floors.
  • This one is slightly enlarged in too FIG. 13 shown.
  • the dual port adapter has an upper port 35 and a lower port 36 which is in FIG. 12 in reality would not be visible.
  • the connection adapter 15 shown for only one level.
  • the simple connection adapter 15 has a total of eight channel connections in the outdoor area and in addition three auxiliary connections in the center, the double connection adapter 35, however, at each connection only four channel connections and additional auxiliary connections.
  • the auxiliary connections serve for drying and leakage air testing.
  • With the simple connection adapter 15 can be prepared as an endoscope with a maximum of eight individual channels, while with the double connection adapter 35 on each floor only one endoscope with a maximum of four individual channels can be treated.
  • FIG. 15 schematically an endoscope 2 is shown, can be flushed through the four separate channels individually. Accordingly, two such endoscopes can be treated with one device with a total of eight channel systems.
  • the connections to be made to the connection adapter are as follows: 5a for the water channel, 5b for the air channel, 5c for the biopsy channel and 5d for the suction channel.
  • Specially designed for the endoscopes channel separator 38 ensure that the air and water channels remain separated from each other in the treatment.
  • Each of the four channels undergoes exactly the same treatment, treatment fluid, temperature and flow measurement process.
  • the devices according to the invention can be adapted to the specific instruments to be treated. This concerns in particular the number and constructional arrangement of the channel systems.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
EP09158261A 2009-04-20 2009-04-20 Dispositif et procédé de traitement et d'analyse de canaux dans des instruments, notamment des endoscopes Revoked EP2243418B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09158261A EP2243418B1 (fr) 2009-04-20 2009-04-20 Dispositif et procédé de traitement et d'analyse de canaux dans des instruments, notamment des endoscopes
AT09158261T ATE547041T1 (de) 2009-04-20 2009-04-20 Vorrichtung und verfahren zum behandeln und analysieren von kanälen in instrumenten, insbesondere in endoskopen
US12/761,890 US8721985B2 (en) 2009-04-20 2010-04-16 Device and method for treating and analysing channels in instruments, particularly in endoscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09158261A EP2243418B1 (fr) 2009-04-20 2009-04-20 Dispositif et procédé de traitement et d'analyse de canaux dans des instruments, notamment des endoscopes

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EP2243418A1 true EP2243418A1 (fr) 2010-10-27
EP2243418B1 EP2243418B1 (fr) 2012-02-29

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EP09158261A Revoked EP2243418B1 (fr) 2009-04-20 2009-04-20 Dispositif et procédé de traitement et d'analyse de canaux dans des instruments, notamment des endoscopes

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US (1) US8721985B2 (fr)
EP (1) EP2243418B1 (fr)
AT (1) ATE547041T1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2594220A1 (fr) 2011-11-15 2013-05-22 Belimed AG Dispositif de raccordement pour un dispositif de nettoyage d'instruments dotés d'au moins une lumière devant être nettoyée
DE102011087220A1 (de) * 2011-11-28 2013-05-29 Olympus Winter & Ibe Gmbh Beladung einer Aufbereitungsvorrichtung für chirurgische Instrumente, insbesondere Endoskope
WO2024023859A1 (fr) * 2022-07-26 2024-02-01 Cisa Production S.R.L. Appareil pour le traitement interne et externe d'endoscopes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224843A1 (de) * 2014-12-04 2016-06-09 Olympus Winter & Ibe Gmbh Aufbereitungssystem zum Reinigen und/oder Desinfizieren von medizinischen Geräten und Verfahren zum Betreiben desselben
CA3027115A1 (fr) 2015-06-25 2016-12-29 Smartline Holdings Pty Ltd Systeme de surveillance hygienique
US10524648B2 (en) * 2016-08-08 2020-01-07 Asp Global Manufacturing Gmbh Features to prevent cross-contamination of endoscope from reprocessing system
DE102021113274B4 (de) 2021-05-21 2023-01-26 Miele & Cie. Kg Modul zur Beaufschlagung von Spülgütern mit einem Medium

Citations (6)

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Publication number Priority date Publication date Assignee Title
DE4314364A1 (de) 1992-04-30 1993-11-04 Mitsubishi Electric Corp Thermischer flusssensor und zugehoeriger waermeempfindlicher widerstand
US5279799A (en) 1990-10-23 1994-01-18 Hamo Ag Apparatus for cleaning and testing endoscopes
JP2001299697A (ja) 2000-02-17 2001-10-30 Olympus Optical Co Ltd 内視鏡洗滌消毒装置
US20040134520A1 (en) * 2003-01-13 2004-07-15 Custom Ultrasonics, Inc. Method for determining the existence of obstructions in the passageways of a medical instrument
DE10352198A1 (de) 2003-11-05 2005-06-30 Bht Hygienetechnik Gmbh Verfahren zur Analyse von Kanälen, insbesondere Endoskopkanälen, und Vorrichtung zur Durchführung des Verfahrens
US20050209507A1 (en) * 2004-03-22 2005-09-22 Olympus Corporation Endoscope washer system, endoscope washer device, and endoscope

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679447A5 (fr) 1990-10-23 1992-02-28 Hamo Ag
US6606573B2 (en) * 2001-08-29 2003-08-12 Micro Motion, Inc. Sensor apparatus, methods and computer program products employing vibrational shape control
DE10161106A1 (de) 2001-12-12 2003-06-26 Bht Hygiene Technik Gmbh Reinigungs- und Desinfektionsmaschine
DE10208035B4 (de) 2002-02-26 2005-10-06 Bht Hygiene Technik Gmbh Vorrichtung zum Überprüfen der Durchgängigkeit von Endoskopkanälen
JP4314364B2 (ja) * 2003-09-01 2009-08-12 国立大学法人京都大学 スクリーニング用溶液の作製方法及び装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279799A (en) 1990-10-23 1994-01-18 Hamo Ag Apparatus for cleaning and testing endoscopes
DE4314364A1 (de) 1992-04-30 1993-11-04 Mitsubishi Electric Corp Thermischer flusssensor und zugehoeriger waermeempfindlicher widerstand
JP2001299697A (ja) 2000-02-17 2001-10-30 Olympus Optical Co Ltd 内視鏡洗滌消毒装置
EP1502538A1 (fr) * 2000-02-17 2005-02-02 Olympus Corporation Dispositif et procede pour le lavage et la desinfection d'un endoscope
US20040134520A1 (en) * 2003-01-13 2004-07-15 Custom Ultrasonics, Inc. Method for determining the existence of obstructions in the passageways of a medical instrument
DE10352198A1 (de) 2003-11-05 2005-06-30 Bht Hygienetechnik Gmbh Verfahren zur Analyse von Kanälen, insbesondere Endoskopkanälen, und Vorrichtung zur Durchführung des Verfahrens
US20050209507A1 (en) * 2004-03-22 2005-09-22 Olympus Corporation Endoscope washer system, endoscope washer device, and endoscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2594220A1 (fr) 2011-11-15 2013-05-22 Belimed AG Dispositif de raccordement pour un dispositif de nettoyage d'instruments dotés d'au moins une lumière devant être nettoyée
DE102011087220A1 (de) * 2011-11-28 2013-05-29 Olympus Winter & Ibe Gmbh Beladung einer Aufbereitungsvorrichtung für chirurgische Instrumente, insbesondere Endoskope
WO2024023859A1 (fr) * 2022-07-26 2024-02-01 Cisa Production S.R.L. Appareil pour le traitement interne et externe d'endoscopes

Also Published As

Publication number Publication date
US8721985B2 (en) 2014-05-13
ATE547041T1 (de) 2012-03-15
EP2243418B1 (fr) 2012-02-29
US20100266447A1 (en) 2010-10-21

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